JPH08239923A - Wall surface unit member of log house, and method for assembling the unit member - Google Patents

Abstract

PURPOSE: To improve construction efficiency by forming an old timber at the demolition work of old house into various unit members of specific dimensions and providing an engaging structure to stack and fix these members. CONSTITUTION: Old timbers are formed into 3-20 kinds of unit members having a length of 28-100cm, height of 10-25cm, width of 6-20cm to reduce the weight thereof. Next, an engaging structure is provided for each of the members to engage adjoining members with each other. For assembling wall surfaces, for example, second and fourth unit members B, D and third and fifth unit members C, E, belonging to different wall surfaces, are stacked alternately and a notched part is engaged with a unit member just below the notched part to form a corner part 1. And, if required, the vertical cut surface of the notched part is inclined at an angle of 20-90 deg. with respect to the longitudinal direction thereof to set the corner part at a desired angle. Further, first unit members A are stacked on staggered patterns. Since old timbers are used, variation of dimension can be avioded and hence construction work can be easily performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention forms a log house wall unit by molding and processing old wood such as cedar, zelkova, and pine that appears after dismantling an old house. The present invention relates to a log house wall surface unit member that can be assembled and a log house manufacturing method.

[0002]

2. Description of the Related Art A log house (a small one is also called a log cabin) generally refers to a handmade house made of logs. A log cabin-like small structure that assembles commercially available kits from full-scale villa-like things that combine logs of raw wood. There are various things.

Even if the conventional commercially available kit is a cabin (cabin) of about 10 m ² , it is necessary to stack large log blocks of about 2 to 4 m in length that cannot be carried by one person.

That is, a felled new tree is roughly sawn, dried, and formed into a block of a predetermined size. Conventionally, a log cut into a length of about 2 to 4 m is easily piled up to some extent. The main component members were

By the way, it is generally considered that it is good to use sufficiently dried wood for forming and processing wood, and to avoid raw wood (raw wood) when accuracy is required.

When the moisture in the raw material evaporates, the lid is warped and cracked, and it cannot be used as a standardized unit member that requires high dimensional accuracy.

Therefore, the raw wood is usually forcedly dried by using a hot air dryer or other drying device, or naturally dried for several months and then molded.

The above log house (log cabin) can be used not only as a villa but also as a study room or warehouse for general households, or as a bungalow in a camping area. Demand is expected.

[0009]

However, since the unit member of the conventional log house is a new material which is naturally dried for several months, the unit member is not sufficiently dried, and distortion is inevitably generated after molding. However, it was not possible to stably obtain high dimensional accuracy.

Therefore, even though the conventional unit type,
Its dimensional accuracy is low, and even when building a wall surface, it cannot be maintained simply by stacking the wall surface units,
It was necessary to fix the unit members laminated by nails, metal fixtures and other fixing means to each other.

Further, as described above, although each unit is a unit member, it has a long length of 2 m or more and usually weighs 10 kg or more. Therefore, it is difficult for an amateur, particularly a woman, to assemble a log house.

On the other hand, it can be seen in various places that an old house that has been aged for 10 to 70 years has been dismantled due to the construction of a new house, but in the past, old timber, which was used as waste wood when the old house was dismantled, was handled by a processor. Most were incinerated.

The thick wood (old wood) such as the pillars and beams of the old house, which has been stored for more than 10 years, is a very good wood raw material that has been naturally dried for a long period of time in the shade drying. It is superior in dryness to the raw wood dried using a machine (drying oven), and high processing dimensional accuracy can be obtained.

The present invention has been made in view of the above circumstances, and paying attention to the fact that the old timber of columns and beams, which were conventionally incinerated as waste when the old house was dismantled, is extremely well dried, This is molded into several standardized blocks of specified dimensions to form a log house wall unit member,
It is reused as a wall unit member of a small log house that can be easily and accurately assembled.

[0015]

DISCLOSURE OF THE INVENTION The present invention provides (1) a wall unit member for a log house, which is constructed by stacking wooden members to assemble a wall surface and additionally providing a roofing material and a floor board material. The old wood that is sometimes used as a waste material is used as a raw material, and the old wood has a maximum length of 28 to 100 cm
3 to 20 types of unit members having a predetermined size and shape are formed, and the wall members of the log house are formed by stacking the unit members and fixing them by a fitting mechanism in which adjacent unit members are locked to each other. By providing a log house wall unit member characterized by being formed,
(2) In addition, in the wall unit member of the log house which is constructed by horizontally stacking wooden members to assemble the wall surface and additionally attach roofing material and floor board material, the old wood that is used as waste material when the old house is dismantled is used as the raw material. Used, the old wood is 28 to 100 cm in length, 10 to 25 cm in height, and 6 to 2 in width.
A block having a predetermined size within a range of 0 cm is formed, and at least a convex projection (tenon with both bodies) continuous in the length direction on the upper surface of the block is formed, and the convex projection is formed on the lower surface in the length direction. By forming a concave groove (mortise) that fits the part, the vertical tenon (male part) on one side and the vertical tenon (female part) on the other side in the longitudinal direction of the left and right end surfaces that are perpendicular to the length direction.
The first unit member (A) formed by molding, and the first cutout formed by cutting the first unit member into a half-section shape from a predetermined position on the lower surface to a half height in the vertical direction. A second unit member (B) having a vertical tenon of the end face and a part of the convex projection on the upper surface removed, and a vertical tenon groove of one end face of the first unit member. In the block in the state not to have a second notch cut in a half cross-sectional shape of the first unit member from a predetermined position on the lower surface to half the height in the vertical direction, and a part of the convex protrusion on the upper surface is cut off. The third unit member (C) having a shape and the second unit member are cut at a right angle to a half length, and the vertical mortise groove is formed on the cut surface of one of the cut blocks having the first notch. The fourth you formed A fifth member in which the vertical tenon is formed on the cut surface of one of the block member (D) and the third unit member which are cut at a right angle to a half length and which has a second cutout portion. (3) Further, by providing a wall unit member for a log house, which comprises five kinds of unit members (E), (3) the first unit member is cut into half lengths. A sixth unit member (J) having a vertical tenon groove on its end face, a seventh unit member (K) having a vertical tenon on the end face, and no vertical tenon groove provided on one end face of the first unit member And a fourth unit member (M) in a state and a ninth unit member (N) in which a vertical tenon provided on one end surface of the first unit member is removed. The log ha according to claim 2. (4) Further, the second unit member, the third unit member, the fourth unit member, and the first cutout portion of the fifth unit member or The log house according to claim 2 or 3, wherein the vertical cut surface of the second cutout portion is set at a predetermined angle in the range of 20 to 90 degrees with respect to the length direction of each unit member. By providing the wall unit member of
(5) Further, the second and fourth unit members (B, D) whose corners where the wall surfaces of the log house contact each other belong to different wall surfaces.
And third and fifth unit members (C, E) are formed by fitting each first notch or second notch to unit members belonging to different wall surfaces directly below so that they are alternately stacked. By providing a log house wall surface assembling method characterized in that the positions of the left and right end surfaces of the unit members in contact with each other vertically on each wall surface are staggered and stacked by a half length of the first unit member. To achieve.

[0016]

The wall unit member of the log house according to the present invention uses old wood, which is so-called waste material produced when the so-called old house is dismantled.

Also, the old wood of the waste material is reborn as a very good quality luster, almost like a new one, by removing the nails and other metal pieces and cutting the surface.

In general, since old houses have been used for more than 10 years, the thick materials (old wood) such as beams and pillars that have been used are sufficiently dried naturally, and they are good wood raw materials that can be accurately shaped and processed. .

Therefore, when the old wood is molded and processed, high dimensional accuracy can be maintained, and a unit member smaller than the conventional one can be obtained.

The above-mentioned old wood is a waste wood of a general wooden house.
0% or more is thick old wood and can be utilized as the wall unit member of the present invention.

Therefore, since old wood that has been incinerated in the past can be used, resource recycling can be achieved. Moreover, since the above-mentioned old wood is used for incineration, the cost is reduced. The cost is extremely low compared to the log house that used the conventional new material.

The old wood having the above-mentioned excellent characteristics is formed into a unit member of a predetermined size and shape of 3 to 20 having the longest dimension of 28 to 100 cm, and the unit members are laminated so that adjacent unit members are adjacent to each other. By fixing with a fitting mechanism that locks with each other, it becomes possible for a woman to easily assemble the wall surface of the log house without using nails or other fixing tools or caulking agents, as if she were stacking blocks.

Further, by adding several kinds of unit members provided with notches for fitting for corners, and several kinds of unit members for forming a window or other space, it is possible to meet various uses. A log house wall surface with a high degree of freedom is created.

Further, by setting the angle of the notch portion of the unit member for corners with respect to the lengthwise direction of the vertical notch surface to an arbitrary angle of 20 to 90 degrees other than 90 degrees, a room having a general rectangular parallelepiped shape can be obtained. Not limited to, hexagonal or octagonal, and even a log house wall with a shape close to a circle can be assembled.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a wall unit member for a log house according to the present invention and a method for manufacturing the wall surface of the log house will be described in detail below with reference to the drawings.

FIG. 1 is an enlarged perspective view for explaining an assembly structure of a wall unit member of a log house according to the present invention.

FIG. 2 is a front view of a wall surface using the log house wall surface unit member according to the present invention.

First, all the wall unit members used in the present invention are obtained by molding and processing old wood obtained by dismantling old houses and other structures.

The molding process procedure is as follows.

First, thick materials such as columns and beams are selected from the collected waste materials and cut into about 4 m. Second, nails and other metal pieces attached to the thick material are removed.

Thirdly, the unit member is cut into small pieces of a size commensurate with each other.

Fourth, the metal pieces such as nails are removed again,
At the same time, a final inspection for removing metal fragments is performed using a metal detector.

Fifth, the material is roughly formed into a rectangular parallelepiped basic block.

Sixth, several kinds of wall surface unit members are completed by cutting and forming into predetermined shapes with an NC-controlled forming machine (generally called a moulder).

Incidentally, the decayed portion of the old wood is removed in the above-mentioned suitable process.

Since the wall surface unit member obtained through the above steps is sufficiently naturally dried as described above, it is lighter than the new material, has gloss, does not cause distortion, and maintains extremely high precision molding processing. .

Further, since the surface coating and the adhesiveness of the adhesive are excellent, and of course, the waste material is used as the raw material, the cost is remarkably low as compared with the case of using the new material.

Next, an example of the construction of the wall unit member of the concrete log house using the above old wood will be described.

In FIG. 1, the log house wall surface unit member according to the present invention includes five kinds of wall surface unit members A, B, and
It is composed of C, D and E, and the wall surface of the log house is assembled.

That is, the first unit member A, which is a basic wall unit member, is laminated on the wall surface except the corner portions 1 of the wall surface such that the first unit member A is fitted from above with the length direction being horizontal. The wall surfaces of the log house are formed by fixing the unit members adjacent to each other on the four sides by a fitting mechanism that locks each other.

FIG. 3 is an external view of the first wall surface unit member A by the trigonometric method.

In the figure, the first wall surface unit member A has a length L of 600 mm, a height h of 160 mm, and a width W of 85 m.
It is set to m. The outer surface 8 is rounded so that the log house looks like a log.

Furthermore, as a fitting mechanism in which unit members that are adjacent to each other in the upper, lower, left, and right directions are locked to each other, the upper surface 9 has a convex projection 2 (a tenon with both barrels and a height) that is continuous in the longitudinal direction. Is about 15 mm), and a concave groove 3 (mortise) having a size and shape that fits with the convex protrusion 2 is formed in the longitudinal direction of the lower surface 10, and left and right end surfaces 11 perpendicular to the longitudinal direction, 1
2 has a structure in which a dovetail 4 (male part) is formed on one side as a vertical tenon, and a dovetail groove 5 (a female part corresponding to the male part and having a depth of about 23 mm) is formed on the other as a vertical tenon. ing.

Since the dovetail 4 and the dovetail groove 5 as the vertical tenon can keep the unit members fitted to each other extremely strongly in the lengthwise direction, it can be said to be desirable as a unit member fitting mechanism according to the present invention.

By vertically fitting the first wall surface unit member A vertically from above by the fitting mechanism, as shown in FIG. 2, the upper and lower convex projections 2 and the concave grooves 3, and the left and right dovetail tenons. 4 and the dovetail groove 5 are tightly joined to form a strong wall surface.

The left and right edges of the outer surface 8 are chamfered 7, but this is for convenience of handling and is not a constituent of the present invention, and the radius of the outer surface 8 is also a constituent. Rather, it can be set arbitrarily, and can be designed in various shapes (for example, an octagonal multi-sided structure or a simple vertical surface) by changing the shape during molding. This also applies to other wall surface unit members described later.

In the dimension setting as the wall surface unit member, although the weight of one unit member is slightly different depending on the material (type of timber such as cedar, pine, zelkova), it is about 5 kg.
It has a merit that it can be easily carried and assembled even by a woman, and the floor plan can be easily designed with a length of 1/3 of a space (180 cm).

Of course, the dimensions are not limited to those in the above embodiment, but the length is 28 to 100 cm and the height is 10 to 25 c.
Needless to say, the handling is remarkably better than the conventional one, even if the dimensions are appropriately set within the range of m and the width of 6 to 20 cm.

Next, in FIG. 1, the wall surface unit members second to fifth unit members B, C, D, each having a fitting mechanism for alternately stacking the intersecting wall surfaces at the corner portion 1 of the wall surface in FIG.
E joins.

More specifically, as shown in the external view represented by the trigonometric method of FIG. 4, the vertical direction from a predetermined position of the lower surface 10 of the first unit member A (a little to the right of the center in the drawing). Has a first notch 13 cut into a half-sectional shape of the first unit member to a half height in the direction, and has a dovetail 4 on the end face and a part 14 of the convex protrusion 2 on the upper face.
The second unit member B having a shape obtained by cutting away the dovetail groove 5 on one end face of the first unit member A as shown in the external view represented by the third trigonometry of FIG. 5 is not formed. In the block in the state, the half cross-sectional shape of the first unit member from a predetermined position on the lower surface (relative to the second unit member B in the drawing, which is slightly left of the center in the drawing) to half the height in the vertical direction. Second notch 15 cut into
And a third unit member C having a shape in which a part 16 of the convex projecting portion 2 on the upper surface is cut off, and as shown in the external view represented by the third trigonometry in FIG. A fourth unit in which the second unit member B is cut into a half length (L '= 30 cm) at a right angle and the dovetail groove 5 is formed on the cut surface of one of the cut blocks having the first notch 13. Unit member D of FIG. 6 and the third unit member C as shown in the external view represented by the trigonometric method in FIG.
Is cut into a half length at a right angle and the second notch 1
One block cut with 5 (L ″ = 30 cm)
The four kinds of wall surface unit members of the fifth unit member E in which the dovetails 4 are formed on the cut surface of are fitted alternately with the first notch 13 or the second notch 15 up and down from the mutual wall surfaces. The corner portion 1 is assembled.

FIG. 2 shows that the stacking relationship of the corner portions 1 of the wall surface is repeatedly assembled from bottom to top in the order of BEDC.

The corners may be composed of second and third unit members B and C without using the fourth and fifth unit members D and E having a half length as shown in FIG. .

In this case, the fitting portions (both end surfaces of the unit members) of the first, second and third unit members A, B and C, which are vertically stacked and adjacent to each other, are vertically connected, so that the upper and lower parts as shown in FIG. In the case of stacking, the strength of the wall surface is slightly weaker than in the case where the fourth and fifth unit members D and E are inserted so that the fitting portions of the respective layers are alternately formed.

However, in principle, it is possible to assemble the wall surface of the log house without the fixture by using at least three kinds of wall surface unit members A, B, and C described above.

Incidentally, in addition to the above, the wall unit members A to C or A to E can be assembled infinitely, and the assembly shown in FIGS. 1 and 2 is only one embodiment. Of course.

As described above, basically, three to five kinds of wall unit members are used to firmly assemble the wall surface of the log house as if the blocks were piled up without a fixture, but as a log house, windows and doors are used. Since it is necessary to provide a square space in a part of the wall surface,
Wall surface unit members J, K, M located on the frame end surface of FIG.
It is also desirable to add N.

More specifically, as shown in FIG.
A sixth unit member J having a dovetail groove 5 on the end face formed by cutting the first unit member A into half lengths;
A state in which a seventh unit member K having a dovetail 4 on the end face as shown in (b) and a dovetail groove 5 provided on one end face of the first unit member A as shown in FIG. 8 is not provided. An eighth unit member M of, and as shown in FIG.
Four kinds of unit members, that is, a ninth unit member N in which the dovetails 4 provided on one end surface of the first unit member A are removed, are added.

When the sixth to ninth wall surface unit members are used as unit members whose end faces are located on the window frame, as shown in FIG. 10, a square space without dovetails 4 and dovetail grooves 5 is formed at the four edges. Obtained and easily attached to window frames and doors.

Needless to say, the floor plan of the log house surrounded by the wall surface can be designed in any manner by connecting the corners.

Next, in the above embodiments, when the wall surfaces intersect at right angles at the corners, in other words, the floor plan of a rectangular parallelepiped shape is assumed. For example, the second to fifth parts forming the corners. The vertical cut surfaces of the first cutouts 13 and the second cutouts 15 in the wall surface unit members B to E are not at right angles as illustrated in the lengthwise direction, but 20 in the lengthwise direction of each unit member. It is obvious that the corners can be assembled without any problem even if the angle is set to a predetermined angle in the range of 90 degrees.

For example, when the notch is formed obliquely at an angle of 45 degrees, a log house like the dream hall of Horyu-ji Toin, which has an octagonal appearance, can be made by assembling with the wall widths evenly arranged. If the angle is further reduced, a log house close to a circle will be possible. On the contrary, if adjacent wall unit members are assembled at an acute angle, a triangular log house can be formed.

Next, a wall surface assembling method using the log house wall surface unit member of the present invention will be described.

Basically, the wall unit member according to the present invention can also be used as a partition, and can be endlessly assembled so that several types of building blocks can be stacked to freely create a house of any shape. Each of the wall surface unit members A to N is smaller than the conventional one, and the weight is about 5 kg, which is easy for a woman to handle, and is characterized in that it can be assembled without nails. As shown in Fig. 2, the second and fourth unit members (B, D) and the third and fifth unit members (C, E) belonging to different wall surfaces are alternately arranged at the corners 1 where the wall surfaces of the log house are in contact with each other. Each of the first notches 13 or the second notches 15 is formed by being fitted to unit members belonging to different wall surfaces directly below so as to be stacked, and the positions of the left and right end surfaces of the unit members in contact with each other vertically on each wall surface. (Fitting portion) is the pile and alternately displaced half the length of the first unit members.

In the above-mentioned stacking method, the stacking relationship between the adjacent wall surfaces is shifted by half in the height direction, which increases the strength of the wall surfaces.

In order to provide the above vertical displacement, a member F having a half height obtained by laterally halving a wall unit member as shown in FIG. 2 at the bottom of one wall (the length is not particularly limited). It is necessary to lay on the foundation 20 laid on the foundation 21 (a length of about 2 m is preferable).

Of course, it is needless to say that the stacking of the adjacent wall surfaces can be made the same without making a step difference.

After assembling the above wall surfaces, the roof is made of roofing board, which can also be made by processing waste timber (not necessarily thick wood) like the wall surface.

Similarly, old timber can be used for the floor surface. Furthermore, by laying charcoal made by burning unusable waste materials under the floor, it is possible to have the effect of removing moisture, heat insulation, and insect repellent, so that nearly 100% of recycling of resources can be achieved. is there.

It should be noted that the type of the wall surface unit member may change a little because the shape of the unit member that abuts on the contact surface may change depending on the shape of the roof. It is desirable to control the shape to 20 or less.

As described above in detail, the log house wall unit member of the present invention is light and easy to handle so that even a woman can assemble it by himself, and is an excellent invention that contributes to the effective utilization of waste timber as a waste resource. .

[0071]

Since the log house wall surface unit member according to the present invention is constructed as described above, it has the following effects.

(1) Since it is unitized into a size and weight that can be carried by one person, it has an excellent effect that a small log house can be easily assembled even by a woman.

(2) Since old wood, which is a waste material when dismantling an old house, is extremely well dried wood, there is no warp like raw wood, and unit members can be molded with extremely high accuracy.
It has an excellent effect that there is no error in assembling the wall surface.

(3) Since the raw material is old wood discharged at the time of demolishing a house, it has an excellent effect that resources can be effectively utilized.

(4) It has an excellent effect that it can be constructed extremely strongly without using a fixed metal object such as a nail by an assembling method in which both end portions of the wall surface unit member are laminated so that upper and lower layers are staggered.

(5) By changing the angle with respect to the lengthwise direction of the vertical plane of the notch of the wall unit member at the corner portion, it is possible to obtain an excellent effect of being able to cope with wall surface configurations of various angles other than the right angle corner. Have.

[Brief description of drawings]

FIG. 1 is an enlarged perspective view for explaining an assembly structure of a wall unit member of a log house according to the present invention.

FIG. 2 is a front view of a wall surface using a log house wall surface unit member according to the present invention.

3 is an external view of a first wall surface unit member A by a third trigonometry. FIG.

FIG. 4 is an external view of a second wall surface unit member B by a trigonometric method.

5 is an external view of a third wall surface unit member C by a third trigonometry.

6A is an outline view of a fourth wall unit member D by a third trigonometry, and FIG. 6B is an outline view of a fifth wall unit member E by a trigonometry.

7A is an outline view of a sixth wall unit member J by a third trigonometry, and FIG. 7B is an outline view of a seventh wall unit member K by a trigonometry.

8 is an external view of an eighth wall surface unit member M by a trigonometric method. FIG.

FIG. 9 is an outline view of a ninth wall surface unit member N by a trigonometric method.

FIG. 10 is an assembled perspective view of a wall surface of a log house according to the present invention.

[Explanation of symbols]

 1 Corner Corner 2 Convex Protrusion 3 Recessed Groove 4 Dovetail Mortice 5 Dovetail Groove 7 Chamfer 8 Outer Side 9 Upper Surface 10 Lower Surface 11 Right End Surface 12 Left End Surface 13 First Cutout 14, 16 Part of Convex Projection 2 15 2nd notch 20 Base 21 Foundation A 1st unit member B 2nd unit member C 3rd unit member D 4th unit member E 5th unit member F 6th unit member J 7th unit Member K Eighth unit member M Ninth unit member N Tenth unit member L Length of first unit member W Width of first unit member h Height of first unit member

Claims (5)

[Claims] 1. A wall unit member of a log house, which is constructed by stacking wooden members to assemble a wall surface and additionally attaches a roofing material and a floor board material, and uses old wood that is a waste material when dismantling an old house as a raw material. A fitting mechanism in which the old wood is formed into a unit member of a predetermined size and shape of 3 to 20 having a longest dimension of 28 to 100 cm, and the unit members are stacked and adjacent unit members are locked to each other. A log house wall surface unit member characterized in that the wall surface of the log house is formed by fixing the wall surface of the log house. 2. A wall unit member for a log house, which is constructed by horizontally stacking wooden members to assemble a wall and additionally providing a roofing material and a floor board material, using old wood that is a waste material when dismantling an old house as a raw material. Use the old wood with a length of 28 to 100 cm, a height of 10 to 25 cm, and a width of 6 to
A block having a predetermined size within a range of 20 cm is formed, and at least a convex projection (tenon with both bodies) continuous in the length direction on the upper surface of the block is formed, and the convex projection is formed on the lower surface in the length direction. Mold a concave groove (mortise) that fits the part, and form a vertical tenon (male part) on one side and a vertical tenon groove (female part) on the other side in the longitudinal direction of the left and right end faces that are perpendicular to the length direction A molded first unit member (A) and a first cutout formed by cutting the first unit member to a half height in a vertical direction from a predetermined position on the lower surface of the first unit member. And a second unit member (B) having a shape in which the vertical tenon of the end face and a part of the convex protrusion on the upper surface are removed, and the vertical tenon groove of one end face of the first unit member is not formed. In the state block, A third unit member (C) having a second notch formed by cutting the first unit member to a half height in the vertical direction from the vertical position to a half height and removing a part of the convex protrusion on the upper surface (C) And a fourth unit member (D) in which the second unit member is cut at a right angle to half the length and the vertical mortise groove is formed on the cut surface of one of the cut blocks having the first notch. And a fifth unit member (E) in which the vertical tenon is formed on the cut surface of one of the cut blocks having a second notch and the third unit member being cut at a right angle to a half length. A wall unit member for a log house, which is composed of five kinds of unit members. 3. A sixth unit member (J) having a vertical mortise groove on an end surface formed by cutting the first unit member into half lengths, and a seventh unit member (J) having a vertical mortise on an end surface. K) and an eighth unit member (M) provided on one end surface of the first unit member without vertical mortise grooves,
The wall unit member of the log house according to claim 2, wherein four kinds of unit members are added, which is a ninth unit member (N) in which a vertical tenon provided on one end surface of the first unit member is removed. . 4. The second unit member, the third unit member, the fourth unit member, and the vertical cutting surface of the first cutout portion or the second cutout portion of the fifth unit member is each unit. The wall unit member for a log house according to claim 2 or 3, wherein the wall unit member is set at a predetermined angle within a range of 20 to 90 degrees with respect to a length direction of the member. 5. The second and fourth unit members (B, D) whose corners where the wall surfaces of the log house contact each other belong to different wall surfaces.
And third and fifth unit members (C, E) are formed by fitting each first notch or second notch to unit members belonging to different wall surfaces directly below so that they are alternately stacked. A method for assembling a wall surface of a log house, characterized in that the positions of the left and right end surfaces of the unit members that are vertically in contact with each other on the wall surfaces are staggered by a half of the length of the first unit member.